1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/realms/bug1518753.js b/js/src/jit-test/tests/realms/bug1518753.js
new file mode 100644
index 0000000000..61743d3111
--- /dev/null
+++ b/js/src/jit-test/tests/realms/bug1518753.js
@@ -0,0 +1,13 @@
+var g = newGlobal({sameCompartmentAs: this});
+
+var o1 = Array(1, 2);
+var o2 = g.Array(1, 2);
+Array.prototype.x = 10;
+
+function test(o, v) {
+    for (var i = 0; i < 15; i++) {
+        assertEq(o.x, v);
+    }
+}
+test(o1, 10);
+test(o2, undefined);